Vitamin A | relatively stable | Thiamine (Vitamin B-1) | destroyed heated at 120°C ,after 5 hours. Large portion was destroyed when heated moist at 100°C ,after 24 hours, but not when heated dry at the same condition. | Riboflavin (Vitamin B-2) | destroyed, heated at 100°C ,after 144 hours | Vitamin D | no | Vitamin E | no | Vitamin K | no | Niacin (Vitamin B-3) | no | Biotin (vitamin H or vitamin B-7) | no | Pantothenic Acid (Vitamin B-5) | yes | Folate (Vitamin B-9) | at high temp | Vitamin B-6 | at high temp | Vitamin B-12 | no | Vitamin C | yes |
Note: non-pressurized boiling above sea level does not exceed 100°C See: http://www.jbc.org/content/99/1/309.full.pdf |